Users Manual

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Wiring layout
Since the CRSF protocol is serial, it has to be connected to a free serial/UART port on the flight controller.
On the COLIBRI RACE you can choose UART 1 or 3. If you use the POWERCUBE with FPVision, you can use
also use UART2. The pin-out and wiring layout shown in the following table and on the included diagram.
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In addition to the CRSF serial connection, you might want to connect BST (BlackSheep Telemetry) between
the CROSSFIRE RX and COLIBRI to provide more telemetry and make changes remotely on the CORE PRO
(if connected) or FPVision (if part of the POWERCUBE).
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CROSSFIRE MICRO
V1 RX
CROSSFIRE MICRO
V2 RX/ Nano RX
CROSSFIRE
DIVERSITY RX
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Clean-/BetaFlight Serial
port (COLIBRI or other)
Ch./Pin 1 TX
Ch./Pin 1 TX, 5V,
GND
Ch./Pin 8 TX, 5V,
GND
⇒
UART1 or 3 RX, 5V, GND
Not available
Ch./Pin 2 RX only
Ch./Pin 7 RX only
⇐
UART1 or 3 TX
CROSSFIRE RX
BST ⇒
CORE PRO
BST ⇒
POWERCUBE standard
INT. 
COLIBRI FC
CROSSFIRE RX
BST ⇒
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BST ⇒
POWERCUBE FPVision
INT. 
COLIBRI FC
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